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28 Rowan raised $640 in a charity walk last year. This year he raised 15% more than
he raised last year. How much money did Rowan raise this year?
rowan raised 640 last year this year he raised 15% more percent means parts out of 100 15%=15/100=3/20 15% of 640 'of' can be translated as multiply 15%=3/20 3/20 times 640=1920/20=192/2=96 this is 15% he raised 15% MORE SO 640+96=this year=736
640$ - is 100% - in last year
in this year is 15% more, so 100+15=115%
make proportion
640 is 100%
x is 115%
x=640*115/100=736$
Answer: Rowan raised 736$ this year
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